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问题 单项选择题

使用专用I/O指令为每个外围设备I/O接口中的有关寄存器分配I/O端口地址，此方式称为( )。

A．端口编址

B．外设与内存统一编址

C．外设独立编址

D．内存寻址

答案

参考答案：C

单项选择题

哮喘患者，气短息弱，自汗畏风，面色皓白，咳嗽痰稀，舌淡苔白，脉弱。其诊断是

A．哮证缓解期，肺虚
B．哮证缓解期，脾虚
C．哮证缓解期，肾虚
D．虚喘，肺虚
E．虚喘，肾虚
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单项选择题

Melissa and LoveLetter made use of the trust that exists between friends or colleagues. Imagine receiving an (71) from a friend who asks you to open it. This is what happens with Melissa and several other similar email (72) . Upon running, such worms usually proceed to send themselves out to email addresses from the victim’s address book, previous emails, web pages (73) .
As administrators seek to block dangerous email attachments through the recognition of well-known (74) , virus writers use other extensions to circumvent such protection. Executable (.exe) files are renamed to .bat and .cmd plus a whole list of other extensions and will still run and successfully infect target users.
Frequently, hackers try to penetrate networks by sending an attachment that looks like a flash movie, which, while displaying some cute animation, simultaneously runs commands in the background to steal your passwords and give the (75) access to your network.

A．names

B．cookies

C．software

D．extensions
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